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Contract OI history

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Jan 19, 2029 EXPIRATION

CAT $500.00 Put

CAT290119P00500000

Latest saved OI111Oct 23, 2026
Last change+1vs previous saved observation
Saved market days12Oct 02, 2026 onwards
Daily open interest Hover a point for its date and OI
CAT $500.00 put open interest history 12 saved observations from 2026-10-02 to 2026-10-23. Exact values and changes are listed in the table below. 111550 2026-10-02: 101 OI2026-10-05: 101 OI2026-10-06: 101 OI2026-10-07: 103 OI2026-10-08: 103 OI2026-10-09: 105 OI2026-10-13: 105 OI2026-10-14: 105 OI2026-10-15: 105 OI2026-10-16: 106 OI2026-10-21: 110 OI2026-10-23: 111 OI Oct 02, 2026Oct 23, 2026

All saved dates are shown. Changes compare consecutive saved observations. Missing observations are not filled with zero.

CAT contract OI by effective market date, newest first
Market dateOpen interestChange vs prior saved day
Oct 23, 2026Viewing111+1
Oct 21, 2026110+4
Oct 16, 2026106+1
Oct 15, 20261050
Oct 14, 20261050
Oct 13, 20261050
Oct 09, 2026105+2
Oct 08, 20261030
Oct 07, 2026103+2
Oct 06, 20261010
Oct 05, 20261010
Oct 02, 2026101No prior observation